Reply by Ed Lee ●April 12, 20232023-04-12
On Wednesday, April 12, 2023 at 3:51:56 AM UTC-7, Liz Tuddenham wrote:

> Flyguy <soar2...@yahoo.com> wrote: 
> 
> 
> > > [...]
> >>Stirlings are lousy efficiency 
> 
> > > "Compared to an internal combustion engine of the same power rating, 
> > > Stirling engines currently have a higher capital cost and are usually 
> > > larger and heavier. However, they are more efficient than most internal 
> > > combustion engines.[" 
> > > 
> > > "In contrast to internal combustion engines, Stirling engines have the 
> > > potential to use renewable heat sources more easily, and to be quieter 
> > > and more reliable with lower maintenance." 
> > > 
> > > https://en.wikipedia.org/wiki/Stirling_engine 
> > 
> > Stirling engines are more efficient than internal combustion engines: 
> > https://academic.oup.com/ijlct/article/11/2/141/2198425
> Philips achieved some astonishingly high efficiencies with their 
> Stirling engines, as vehicle engines and as heat pumps. 


Stirling engines are not space efficient, but fuel efficient (40% vs. 35% for diesel).  Direct drive engine would not be practical.  However, it would be ideal for battery charger.
Reply by Liz Tuddenham ●April 12, 20232023-04-12
Flyguy <soar2morrow@yahoo.com> wrote:



> > [...]
>>Stirlings are lousy efficiency



> > "Compared to an internal combustion engine of the same power rating,
> > Stirling engines currently have a higher capital cost and are usually
> > larger and heavier. However, they are more efficient than most internal
> > combustion engines.["
> > 
> > "In contrast to internal combustion engines, Stirling engines have the
> > potential to use renewable heat sources more easily, and to be quieter
> > and more reliable with lower maintenance."
> > 
> > https://en.wikipedia.org/wiki/Stirling_engine
> 
> Stirling engines are more efficient than internal combustion engines:
> https://academic.oup.com/ijlct/article/11/2/141/2198425


Philips achieved some astonishingly high efficiencies with their
Stirling engines, as vehicle engines and as heat pumps.  The articles
are scattered throughout the Philips Technical Review, so they take ages
to find.

If Philips' management hadn't been so bad and shut down their
manufacturing and research, they would now be in a position to make a
killing with all the expertise they built up.


-- 
~ Liz Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk
Reply by Carlos E.R. ●April 12, 20232023-04-12
On 2023-04-12 05:52, Flyguy wrote:

> On Saturday, April 8, 2023 at 4:56:02&#8239;AM UTC-7, Ed Lee wrote:
>> I want to try this emergency battery charger:
>>
>> https://www.ebay.com/itm/185836877680
>>
>> 150W output? Or do they mean 150W LED bulb? Perhaps 10W real output?
>>
>> What's the benefit of twin cylinders vs. the single cylinder version?


Easy start. Double power.


> 
> That listing says nothing about 150 W, which is 1/5 hp. I doubt that this thing could put out 15 W, maybe 1.5 W.


It also says "Compatible Control System:  Motorola".

-- 
Cheers, Carlos.
Reply by Carlos E.R. ●April 12, 20232023-04-12
On 2023-04-09 16:23, Ed Lee wrote:

> On Sunday, April 9, 2023 at 4:30:45&#8239;AM UTC-7, Jasen Betts wrote:
>> On 2023-04-08, Ed Lee <edward....@gmail.com> wrote:
>>> I want to try this emergency battery charger:
>>>
>>> https://www.ebay.com/itm/185836877680
>>>
>>> 150W output? Or do they mean 150W LED bulb? Perhaps 10W real output?
>> 150W input, perhaps 2 x 75W alcohol burners.
> 
> They have a LED bulb in the picture (not sure if included).  Typical LED bulb input is 20W.


That's a 3 W led in the photo.


-- 
Cheers, Carlos.
Reply by Ed Lee ●April 12, 20232023-04-12
On Tuesday, April 11, 2023 at 8:52:44&#8239;PM UTC-7, Flyguy wrote:

> On Saturday, April 8, 2023 at 4:56:02&#8239;AM UTC-7, Ed Lee wrote: 
> > I want to try this emergency battery charger: 
> > 
> > https://www.ebay.com/itm/185836877680 
> > . 
> > 150W output? Or do they mean 150W LED bulb? Perhaps 10W real output? 
> > 
> > What's the benefit of twin cylinders vs. the single cylinder version?
> That listing says nothing about 150 W, which is 1/5 hp. I doubt that this thing could put out 15 W, maybe 1.5 W.


It does say Wattage of 150W.  Nobody believes it of course.
Reply by Flyguy ●April 12, 20232023-04-12
On Saturday, April 8, 2023 at 4:56:02&#8239;AM UTC-7, Ed Lee wrote:

> I want to try this emergency battery charger: 
> 
> https://www.ebay.com/itm/185836877680 
> 
> 150W output? Or do they mean 150W LED bulb? Perhaps 10W real output? 
> 
> What's the benefit of twin cylinders vs. the single cylinder version?


That listing says nothing about 150 W, which is 1/5 hp. I doubt that this thing could put out 15 W, maybe 1.5 W.
Reply by Flyguy ●April 12, 20232023-04-12
On Tuesday, April 11, 2023 at 7:39:55&#8239;PM UTC-7, Ed Lee wrote:

> On Tuesday, April 11, 2023 at 4:00:53&#8239;PM UTC-7, Tabby wrote: 
> > On Monday, 10 April 2023 at 05:47:32 UTC+1, Ed Lee wrote: 
> > > On Sunday, April 9, 2023 at 8:39:57&#8239;PM UTC-7, Tabby wrote: 
> > > > On Saturday, 8 April 2023 at 12:56:02 UTC+1, Ed Lee wrote: 
> > > > > I want to try this emergency battery charger: 
> > > > > 
> > > > > https://www.ebay.com/itm/185836877680 
> > > > > 
> > > > > 150W output? Or do they mean 150W LED bulb? Perhaps 10W real output? 
> > > > > 
> > > > > What's the benefit of twin cylinders vs. the single cylinder version? 
> > > > Those are chinese watts. If you get 10w out you'll have done remarkably well. 
> > > Yes, 10W or 150W are still meaningless. What i want to know is how many W per gallon of fuel? For instance, we can usually get 5kwhr to 10kwhr per gallon of gasoline in ICE. 
> > Stirlings are lousy efficiency
> "Compared to an internal combustion engine of the same power rating, Stirling engines currently have a higher capital cost and are usually larger and heavier. However, they are more efficient than most internal combustion engines.[" 
> 
> "In contrast to internal combustion engines, Stirling engines have the potential to use renewable heat sources more easily, and to be quieter and more reliable with lower maintenance." 
> 
> https://en.wikipedia.org/wiki/Stirling_engine


Stirling engines are more efficient than internal combustion engines:
https://academic.oup.com/ijlct/article/11/2/141/2198425
Reply by Ed Lee ●April 11, 20232023-04-11
On Tuesday, April 11, 2023 at 4:00:53&#8239;PM UTC-7, Tabby wrote:

> On Monday, 10 April 2023 at 05:47:32 UTC+1, Ed Lee wrote: 
> > On Sunday, April 9, 2023 at 8:39:57&#8239;PM UTC-7, Tabby wrote: 
> > > On Saturday, 8 April 2023 at 12:56:02 UTC+1, Ed Lee wrote: 
> > > > I want to try this emergency battery charger: 
> > > > 
> > > > https://www.ebay.com/itm/185836877680 
> > > > 
> > > > 150W output? Or do they mean 150W LED bulb? Perhaps 10W real output? 
> > > > 
> > > > What's the benefit of twin cylinders vs. the single cylinder version? 
> > > Those are chinese watts. If you get 10w out you'll have done remarkably well. 
> > Yes, 10W or 150W are still meaningless. What i want to know is how many W per gallon of fuel? For instance, we can usually get 5kwhr to 10kwhr per gallon of gasoline in ICE.
> Stirlings are lousy efficiency


"Compared to an internal combustion engine of the same power rating, Stirling engines currently have a higher capital cost and are usually larger and heavier. However, they are more efficient than most internal combustion engines.["

"In contrast to internal combustion engines, Stirling engines have the potential to use renewable heat sources more easily, and to be quieter and more reliable with lower maintenance."

https://en.wikipedia.org/wiki/Stirling_engine
Reply by Tabby ●April 11, 20232023-04-11
On Monday, 10 April 2023 at 05:47:32 UTC+1, Ed Lee wrote:

> On Sunday, April 9, 2023 at 8:39:57&#8239;PM UTC-7, Tabby wrote: 
> > On Saturday, 8 April 2023 at 12:56:02 UTC+1, Ed Lee wrote: 
> > > I want to try this emergency battery charger: 
> > > 
> > > https://www.ebay.com/itm/185836877680 
> > > 
> > > 150W output? Or do they mean 150W LED bulb? Perhaps 10W real output? 
> > > 
> > > What's the benefit of twin cylinders vs. the single cylinder version? 
> > Those are chinese watts. If you get 10w out you'll have done remarkably well.
> Yes, 10W or 150W are still meaningless. What i want to know is how many W per gallon of fuel? For instance, we can usually get 5kwhr to 10kwhr per gallon of gasoline in ICE.


Stirlings are lousy efficiency
Reply by Ed Lee ●April 10, 20232023-04-10
On Sunday, April 9, 2023 at 8:39:57&#8239;PM UTC-7, Tabby wrote:

> On Saturday, 8 April 2023 at 12:56:02 UTC+1, Ed Lee wrote: 
> > I want to try this emergency battery charger: 
> > 
> > https://www.ebay.com/itm/185836877680 
> > 
> > 150W output? Or do they mean 150W LED bulb? Perhaps 10W real output? 
> > 
> > What's the benefit of twin cylinders vs. the single cylinder version?
> Those are chinese watts. If you get 10w out you'll have done remarkably well.


Yes, 10W or 150W are still meaningless.  What i want to know is how many W per gallon of fuel?  For instance, we can usually get 5kwhr to 10kwhr per gallon of gasoline in ICE.